Home / 1,991,632,147.20-2,987,448,220.80-1,410,023,116.80

Finding the Fourth Proportional to 1,991,632,147.20, 2,987,448,220.80 and 1,410,023,116.80

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Solution

The fourth proportional to 1,991,632,147.20, 2,987,448,220.80 and 1,410,023,116.80 is: 2,115,034,675.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,632,147.20 : 2,987,448,220.80 = 1,410,023,116.80 : x
  2. Step 2: Convert to fraction form
    1,991,632,147.20/2,987,448,220.80 = 1,410,023,116.80/x
  3. Step 3: Cross multiply
    1,991,632,147.20x = 2,987,448,220.80 × 1,410,023,116.80
  4. Step 4: Simplify right side
    1,991,632,147.20x = 4,212,371,051,571,030,528
  5. Step 5: Solve for x
    x = 4,212,371,051,571,030,528/1,991,632,147.20
  6. Step 6: Final answer
    x = 2,115,034,675.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.